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HELP! Can someone tell me if there is a site that defines all the various acronyms associated with maintenance on an aircraft. I'm particularly lost with all the stuff regarding engines and overhauls! Every time I think I've got them down, I find a new one! BOH, POH, TOH??????? Argggg....

Wished I could say that there was a difinitive listing of such, but I've never seen or heard of one.

More common ones are

STOH since top overhaul

SOH or SMOH since major overhaul

TBO time between overhauls

SBOH since bottom overhaul (seen when a top was done and then shortly after, the engine was torn down and the fairly new top was reinstalled on the engine without any further work.)

POH I think this is partial overhaul (meaningless)

Charles

Then of course there one of the most relevant: TBBE

Time before bank account empty <img src="/ubbthreads/images/graemlins/grin.gif" alt="" />

Paper Overhaul

TAP (Trade-A-Plane) and other publications usually have a listing of the more popular acronyms. Some acronyms can have more than one meaning. I think POH/SPOH sometimes means Since Paint Overhaul (repainted), but usually means Since Prop Overhaul, and of course POH also means Pilot's Operating Handbook! Some acronyms are made up as they go, since they pay for extra letter count in most publications. Where and how it's used in the description is often the only clue! IMHO!

And, as a word, it's defined as "an interjection used to express disgust". Worth at least 8 points in Scrabble.

- Jeff

Perhaps a good project for www.cessna150-152.com [cessna150-152.com] to undertake. An online dictionary of commonly used acronyms associated with the little Cessna's. Sounds like I need to ask for further clarification when in doubt. However, it's hard to peruse the classifieds when I don't know what they're saying. I appreciate the explanations and will start a list. TBBE is one I hadn't heard before but can relate to since it applies to Harley's as well as Cessnas!

AD: Airworthiness Directive
ADF: Automatic Direction Finder
AH: Artificial Horizon
A/P, AP: Autopilot
AS,ASI: Airspeed Indicator
B:Beacon
C:Clock
CAT,CT:Carburator Air Temperature Gauge
CDI;Course Deviation Indicator
CEC: Ceconite
CH:Channel
CHT:Cylinder Head Temperature Gauge
CMOH:Chrome Major Overhaul
COM,COMM: Communication
Cont.:Continental
cont: Controls
CTOH: Chrome Top Overhaul
DF:Direction Finder
DG:Directional Gyro
DME: Distance Measuring Equipment
EGT: Exhaust Gas Temperature Gauge
ELT:Emergency Locator Transmitter
ex:Excellent Condition
Fac. Rem: Factory Remanufactured
FD:Flight Director
FGP:Full Gyro Panel
FI:Fuel Injected
Frank.:Franklin engine
FRMF:Factory Remanufatured
FWF:Firewall Forward
GPH: Gallons per Hour
G/S,GS:Glidescope
GSI:Ground Speed Indicator
GSP: Ground Service Plug
GPS;Global Positioning System
HC: Heavy Case
HF:High Frequency radio
HP: Heated Pitot
HP,hp: Horsepower
HSI: Horizontal Situation Indicator
HT:see CHT
IFR:Instrument Flight Rules
ILS:Intrument Landing System
inst:Instrument
IVSI:Instantaneous Vertical Speed Indicator
lndg:Landing
LF:Low Frequency
lgt:Light
LMB,3LMB: three light narker beacon
LOC:Localizer
Loran:Long Range navigation
LRT: Long Range Tank
Ly,Lyc:Lycoming
MB:Marker Beacon
MC:Magnetic Compass
MDH:Major Damage History
MKR:Marker Beacon
MO: Major Overhaul
MP:Manifold Pressure
NAV,Nav:Navigation
NDH:No Damage History
O:Overhaul
OAT:Outside Air Temperature
OBS:Omni Bearing Selector
OH:Overhaul
OSFRM: Zero Time sine Remanufactured
OSMOH: Zero Time since Overhaul
PWI: Proximity Warning Indicator
RB:Rotating Beacon
RC:Rate of Climb
rcvr:Receiver
reman:Remanufactured
RDR:Radar
Rh:Right Hand
RMF:Remanufactured
RMI:Remote Magnetic Indicator
RNVA:Area Navigation
S:Strobe
SCMOH:Since chrome major overhaul
SCTOP:Since chrome top ovrhaul
SFRM:Since factory Overhaul
SG:Slave Gyro
SMOH:Since Major Overhaul
SPOH:Since Prop Overhaul
Sprhmr:Superhomer
STOH:Since Top Overhaul
STOL:Short Takeoff/landing
SW:Stall Warning
TASI:True Airspeed Indicator
TB.T&B:Turn bank Indicator
TBO:Time Between Overhaul
TT:Total Time
TTAE:Total Time Airframe/Engine
TTSN:Total Time Since New
TXP:Transponder
TW:Tailwheel
VHF:Very High Frequency
VRO:Omni Receiver
VOR/LOC: Omni Receiver/Indicator with Localizer
V/STOL: Vertical/Short takeoff/laning
XPDR:Transponder
XTAL:Crystal

Thank you!!!! This will go in the permanent file!

If you've ever been in the military, you'd know just what acronym hell is like. While in the Air Force I organized an annual briefing given to the Army four star Korean Forces Commander. My boss told me to include a list of every acronym in the briefing so that the General could reference it. The briefing was several hours in length and I think my acronym list was over twenty pages long (single spaced: acronym and definition). The Air Force three star had me cut it down to two pages of just the important ones--four star Army generals don't like twenty page documents.